Ricoh Europe B.V., the European Headquarters of Ricoh Company Ltd., Tokyo, announces the launch of the RP500 Step Down DCDC Converter in regular and ultra tiny WLCSP package. The RP500 features excellent fast transient response which is a market trend for new step down DCDC Converters.
Nowadays step down DCDC Converters have the same purpose like LDO’s and should provide power to advanced fast processors; which results in a load with fast transients. Portable gadget applications are able to operate in versatile modes, each with specific load characteristics. Also additional power management parts, which are cascaded at the output of the DCDC Converter, should have a reliable reference voltage as a source. At this moment the RP500 is one of the smallest step down DCDC converter solutions available on the market. The version in chip scaled package occupies around 1mm2 which is very convenient to use on high density and small circuit boards such as portable gadget applications. The package size measures the actual chip size and terminal pins are replaced by tiny solder balls underneath the chip. Other circuit board space reducing factors of this product are the high operating frequency of 1.2MHz, a small sized inductor, an embedded driver transistor and synchronous rectification eliminating the external diode. One can choose between a version with a fixed PWM operating mode and a version with an automatic mode changing circuit (switching between PWM and PFM operating mode) resulting in the best efficiency level at either low or high output currents. Regarding protection, various circuits are embedded assuring a safe operation of the power supply. An under voltage lockout function (UVLO), disables the RP500 in case the input voltage is below the minimum operation voltage threshold. An over-current limit circuit limits the Lx peak current at each clock cycle and will switch into a latched protection mode in case the over-current condition remains for more than 1.5ms. The over-current limit protects the DCDC converter and other electronic parts of the application from damage. An embedded soft-start function boots the internal circuits in 0.1ms. The output voltage is fixed internally by using a laser trimming process and varies in a range from 1.1V to 5.5V in 100mV (or 50mV custom made) increments. An optional auto-discharge function discharges the output capacitor fast when the RP500 is disabled by the CE pin; an embedded transistor is turned on and shorts the capacitor to ground. Besides the WLCSP package, the RP500 is also available in other regular packages such as the SOT23-6W and the PLP1820-6.
Ricoh Company Ltd. is a leading global manufacturer of office automation equipment. The line up includes copiers, multifunctional and other printers, fax machines, personal computers, CD-Recordable, CD-ReWritable and DVD-ReWritable drives and media, and related supplies and services as well as digital cameras and advanced electronic devices. Ricoh is rapidly building a solid presence worldwide as a provider of comprehensive document solutions that help customers streamline their business and cut operating cost. The Ricoh Group has 319 companies -of which 199 outside Japan- together employing over 76,000 people.
Ricoh Europe B.V. is Ricoh Company Ltd’s regional headquarters. Located in Amstelveen, The Netherlands, it is responsible for marketing, sales and service of Ricoh’s products in Europe, the Middle East and Africa. In Europe, Ricoh has three manufacturing sites: two at Ricoh UK Products Ltd. Telford, UK; GR Advanced Materials Ltd., Stirling, UK; and Ricoh Industries France S.A., Colmar, France. In addition, Ricoh Europe’s European network comprises 14 sales subsidiaries and affiliates. In the fiscal year ending March 31, 2006, revenues from Ricoh's European operations totalled over € 3 billion, accounting for 22.7% of the company's global revenues. Ricoh's worldwide sales increased with 5.6% totalling over € 13.6 billion. In March 2001 Ricoh established the European Semiconductor Support Centre to support distributors and customers with their applications or other enquiries about Power Management and Real Time Clock ICs.
For further information, please contact:
Ricoh Europe (Netherlands) B.V. Hans Adams, Manager
Prof. W.H.Keesomlaan 1 Semiconductor Support Centre
1183 DL Amstelveen Phone: +31 (0)20-5474309
The Netherlands Fax: +31 (0)20-5474791
1180 AC Amstelveen
Note: The above text is the public part of the press release obtained from the manufacturer (with minor modifications). EETimes Europe cannot be held responsible for the claims and statements made by the manufacturer. The text is intended as a supplement to the new product presentations in EETimes Europe magazine.